ASTROSAT CZTI

Data Quality Report

Orbit 15333

Creation date: 2024-06-27T17:07:01.934797
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T02_073T01_9000002260_15333cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15333cztM0_level2_quad_clean.evt
Size (bytes)629,720,640121,412,160
Size600.5 MB 115.8 MB
Events in quadrant A3,939,995783,904
Events in quadrant B4,228,321796,035
Events in quadrant C4,061,787786,154
Events in quadrant D6,271,412727,139

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174773
B0180742
C0175942
D0247292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84071091.296539%
B84072092.486024%
C8407610.725586%
D84077558.980611%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9033 8410 0 0 0.00% 0.00%
B 9033 8410 32 32 0.35% 0.38%
C 9033 8410 0 0 0.00% 0.00%
D 9033 8410 801 801 8.87% 9.52%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 4 2 19110 88.26 1015 993 205.3
A 2 79 17833 82.04 1015 993 205.3
A 0 226 8657 37.34 1015 993 205.3
B 10 16 140088 707.89 1014 986 196.5
B 3 64 85935 432.31 1014 986 196.5
B 0 189 39115 194.04 1014 986 196.5
C 3 233 161199 693.64 995 999 231.0
C 8 128 14901 60.19 995 999 231.0
C 8 112 7334 27.43 995 999 231.0
D 13 122 1897953 8082.5 971 942 234.7
D 2 33 651167 2770.38 971 942 234.7
D 10 70 34581 143.32 971 942 234.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter